Twitter API 1.1 - update_with_media返回500 [英] Twitter API 1.1 - update_with_media returns 500
问题描述
我正在尝试使用REST API 1.1从Mac应用上传Twitter上的图片(网址: https://api.twitter.com/1.1/statuses/update_with_media.json ),但我总是得到错误代码500和{错误:[{message:内部错误 代码:131}]}。
如果我只上传一条推文(使用/update.json),它每次都可以正常工作。
I'm trying to upload a picture on Twitter from a Mac app, using REST API 1.1 (url: https://api.twitter.com/1.1/statuses/update_with_media.json), but I get always error code 500 and {"errors":[{"message":"Internal error","code":131}]}. If I upload only a tweet (using /update.json) it works fine every time.
这是我的代码:
NSURL *url = [NSURL URLWithString:@"https://api.twitter.com/1.1/statuses/update_with_media.json"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0f];
[request setHTTPMethod:@"POST"];
[request setHTTPShouldHandleCookies:NO];
NSString *boundary = @"64F3EC90-E32B-4BD9-ADB4-E1A9FBE4AFD6";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request setValue:contentType forHTTPHeaderField:@"Content-Type"];
[self signRequest:request]; // Adding Oauth
NSMutableData *body = [NSMutableData dataWithLength:0];
// Adding tweet string
[body appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSData *data = [[NSString stringWithFormat:@"%@\r\n",@"Uploading again test3"]dataUsingEncoding:NSUTF8StringEncoding];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n",@"status"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:data];
// Adding image
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Disposition: form-data; name=\"media[]\"; filename=\"test.jpg\"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Type: image/jpeg\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"Content-Transfer-Encoding: binary\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:imageData];
[body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
// Set HTTPBody
[request setValue:@(body.length).stringValue forHTTPHeaderField:@"Content-Length"];
request.HTTPBody = body;
推荐答案
我对以下代码感到满意:
I had luck with the following code:
- (void)postTweet:(NSString *)tweetString withImageData:(NSData *)imageData {
- (void)postTweet:(NSString *)tweetString withImageData:(NSData *)imageData {
NSURL *baseURL = [NSURL URLWithString:url_statuses_update_with_media];
NSMutableDictionary *params = [NSMutableDictionary dictionary];
params[@"status"] = tweetString;
params[@"media[]"] = imageData;
[self sendPOSTRequestForURL:baseURL andParams:params];}
- (NSError *)sendPOSTRequestForURL:(NSURL *)url andParams:(NSDictionary *)params {
NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0f];
[请求setHTTPMethod:@POST];
[请求setHTTPShouldHandleCookies:否];
-(NSError *)sendPOSTRequestForURL:(NSURL *)url andParams:(NSDictionary *)params {
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0f];
[request setHTTPMethod:@"POST"];
[request setHTTPShouldHandleCookies:NO];
NSString *boundary = @"64F3EC90-E32B-4BD9-ADB4-E1A9FBE4AFD6";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[request setValue:contentType forHTTPHeaderField:@"Content-Type"];
[self signRequest:request];
NSMutableData *body = [NSMutableData dataWithLength:0];
for (NSString *key in params.allKeys) {
id obj = params[key];
[body appendData:[[NSString stringWithFormat:@"--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSData *data = nil;
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n",key] dataUsingEncoding:NSUTF8StringEncoding]];
if ([obj isKindOfClass:[NSData class]]) {
[body appendData:[@"Content-Type: application/octet-stream\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
data = (NSData *)obj;
} else if ([obj isKindOfClass:[NSString class]]) {
data = [[NSString stringWithFormat:@"%@",(NSString *)obj]dataUsingEncoding:NSUTF8StringEncoding];
}
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:data];
[body appendData:[@"\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
}
[body appendData:[[NSString stringWithFormat:@"--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setValue:@(body.length).stringValue forHTTPHeaderField:@"Content-Length"];
request.HTTPBody = body;
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